We continue to learn more about the way Zika virus affects babies. It turns out Zika can affect babies late in pregnancy. In fact, Zika related brain changes may not become apparent until months after they are born. The reason for this is that the baby continues to grow all except the brain, which does not.
Zika also appears to produce joint deformities. This may take the form of curved or crooked legs or arms.
We are also learning more about the sexual spread of Zika. Men may be able to spread Zika for longer than six months, longer than previously reported. The Obama administration has shifted another $81 million dollars from the Department of Health and Human Services to continue development of a Zika vaccine.
Florida officials continue to deal with more local spread of Zika in the Miami area. Aggressive spraying programs are underway to reduce mosquito populations. Additionally there are plans to release genetically modified mosquitos which will mate with the natural Aedes Aegypti and render their offspring sterile. This has reportedly reduced the Aedes populations in Brazil, Panama and the Cayman islands by 90%.
Various commentators are now starting to focus on how abortion politics played a role in the Congressional failure to develop a funding plan for Zika. It continues to play a role. Since Zika produces grave birth defects in babies which usually live, it is a condition for which some women might chose abortion. Marc Rubio (Republican from Florida) has come out this week saying that he “doesn’t believe a pregnant woman infected with the Zika virus should have the right to an abortion-even if she had reason to believe the child would be born with severe microcephaly. “ A recent STAT Harvard poll indicates that 59% of Americans believe that a women should have a right to end a pregnancy after 24 weeks of testing showed a serious possibility that the fetus had microcephaly caused by the mother’s Zika infection. The same poll also showed most Americans are unaware that Congress left for vacation without securing Zika funding. Meanwhile women and health care workers in Puerto Rico are trying to overcome historical cultural barriers to contraception in a territory at very high risk for Zika.
The Obama administration has shifted another $81 million dollars from the Department of Health and Human Services to continue development of a Zika vaccine in Phase 2 trials. Stage 1 is preclinical development, in labs and on animals. Stage 2 is when the vaccine is first tested on humans. This second stage proceeds first to study safety and then, if it passes, to effectiveness.
In other news, ACOG (The American College of Obstetricians and Gynecologists) has updated its opinion on home births. New data has prompted the revision. The new Committee Opinion Document states that babies are twice as likely to die and more than three times as likely to have seizures soon after birth, compared to hospitals. I would point out that this is case even when most home birth attendants chose low risk patients to deliver at home. I would also point out that the literature on which this is based only reported on two of the worst outcomes, death and seizures. The many lesser but still significant complications like subsequent learning disability remain unquantified.
In other sobering news, the US maternal death rate has increased. Between 2000 and 2014, the death rate increased from 19 per 100,000 to 24 per 100,000. It is unclear as to why though more thorough reporting methods are believed to account for much of the increase. However some of the increase is real, and authorities speculate that it is because women having babies are older and more likely to be obese than in the past. This gives rise to more complications such as maternal hypertension and diabetes.
Many including me are cheering the relaxation of rules surrounding marijuana research. It is currently being used legally in several states without evidence of its effectiveness. New studies should be able to “ weed” out the legitimate from the bogus uses of which I suspect there are many.
Stay tuned next week for more breaking news from the world of Obstetrics and Gynecology.